MacBook Air 11" (2011) Case, BoxWave [Manila Leather Envelope] Retro Envelope Style Hip Cover for Apple MacBook Air 11" (2011), 11" (2010) Crafted from high quality animal-friendly synthetic leather Slim and form-fitting designed to perfectly fit your MacBook Air 11" (2011) Lightweight, and durable design protects from scratches and bumps without adding bulk Secure and authentic mailer flap lock Inside is padded and lined with soft fabric